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SN74HC688DW
+BOMIC COMPARATOR IDENTITY 8B 20SOIC
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ManufacturerTexas Instruments
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Mfr. Part #SN74HC688DW
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Datasheet SN74HC688DW DataSheet
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Package SOIC-20
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In Stock2293
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| Series | 74HC |
| ProductStatus | Active |
| Type | Identity Comparator |
| NumberofBits | 8 |
| Output | Active Low |
| OutputFunction | A=B |
| Voltage-Supply | 2V ~ 6V |
| Current-OutputHighLow | 5.2mA, 5.2mA |
| MaxPropagationDelay@VMaxCL | 36ns @ 6V, 50pF |
| Current-Quiescent(Iq) | 8 µA |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
| SupplierDevicePackage | 20-SOIC |
Overview
Description
Key features include compatibility with TTL systems, low power consumption due to CMOS technology, and operation at a wide range of voltage levels, typically 2V to 6V. The SN74HC688DW is housed in a SOIC-20 package, making it suitable for surface-mount technology (SMT) applications. This comparator is often used in digital systems where efficient data comparison is required, such as arithmetic operations, memory address decoding, and data sorting algorithms. Overall, the SN74HC688DW provides a reliable and versatile solution for equality comparison in various electronic applications.
Equivalent
1. NTE74HC688 by NTE Electronics
2. CD74HC688 by Texas Instruments
3. MC74HC688A by ON Semiconductor
4. TC74HC688 by Toshiba
5. HD74HC688 by Renesas
These alternatives offer similar functionality and can be used in applications requiring 8-bit comparison. Always verify specifications and pin compatibility before substituting components.
Pinout
1. Pin Count: 20 pins.
2. Key Functions:
- Inputs: There are two sets of 8 input pins, labeled A0-A7 and B0-B7, which are the two binary numbers to be compared.
- Output: It has one output pin, typically labeled as "EQUAL" or "EQ", which goes low when the two 8-bit inputs are equal.
- Control Pins: Includes a "P" (active-low enable) input pin used for enabling the device.
This device is part of the 74HC series, which is known for high-speed CMOS logic with low power consumption. The SN74HC688DW is used in digital systems to facilitate equality comparison operations, making it a useful component in applications like digital data processing and memory address decoding.